1、 Recommendation ITU-R BT.2000(01/2012)Use of large screen digital imagery Recommendations in video information systems applicationsBT SeriesBroadcasting service(television)ii Rec. ITU-R BT.2000 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and eco
2、nomical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed b
3、y World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 1 of Resolution ITU-R 1. Forms to be u
4、sed for the submission of patent statements and licensing declarations by patent holders are available from http:/www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. S
5、eries of ITU-R Recommendations (Also available online at http:/www.itu.int/publ/R-REC/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodet
6、ermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management SNG S
7、atellite news gathering TF Time signals and frequency standards emissions V Vocabulary and related subjects Note: This ITU-R Recommendation was approved in English under the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2012 ITU 2012 All rights reserved. No part of this pu
8、blication may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R BT.2000 1 RECOMMENDATION ITU-R BT.2000 Use of large screen digital imagery Recommendations in video information systems applications (2012) Scope This Recommendation identifies the subset of VIS (vide
9、o information system) applications, for which current ITU-R Recommendations relevant to LSDI (large screen digital imagery) applications, can be applied. The ITU Radiocommunication Assembly, considering a) that the ITU Terminology Database defines large screen digital imagery (LSDI) as “a family of
10、digital imagery systems applicable to programmes such as dramas, plays, sporting events, concerts, cultural events, etc., from capture to large screen presentation in high resolution quality in appropriately equipped theatres, halls and other venues”; b) that the definition of video information syst
11、ems (VIS)1encompasses interactive systems (including systems based on local interactivity), that provide high quality video information (including HDTV), for collective viewing in open areas and also in closed large premises; c) that there is a degree of overlap between LSDI applications and VIS app
12、lications, considering further a) that a number of Recommendations relevant to LSDI applications (listed in Annex 1) may equally cover the subset of VIS applications under considering c) above; b) that an extension of the use of those Recommendations to an appropriate subset of VIS applications woul
13、d provide a desirable commonality of specifications and implementation approaches among LSDI applications and some appropriate VIS applications, recommends that the Recommendations applicable to LSDI, listed in Annex 1, should also be applied, where appropriate, to the subset of those VIS applicatio
14、ns that are based on digital imagery for collective presentation of program material. NOTE ITU-T Study Group 9 is invited to consider whether, by the same token, the application of those ITU-T Recommendations in the J-series that currently apply to LSDI could be extended to also apply to the subset
15、of those VIS applications that are based on digital imagery for collective presentation of program material. 1VIS is defined as “a multifunctional interactive system displaying video information with high quality on screens of various sizes in places for collective viewing both in open areas (square
16、s, streets, stadiums and other) and in large premises (halls, shopping centres, underground stations and the like)”. 2 Rec. ITU-R BT.2000 Annex 1 List of ITU-R Recommendations to be used for appropriate applications of video information systems This Annex lists the ITU-R Recommendations applicable t
17、o LSDI, which should also be applied, where appropriate, to the subset of VIS applications that are based on digital imagery for collective presentation of program material. Rec. ITU-R Title BT.1662 General reference chain and management of post-processing headroom for programme essence in large scr
18、een digital imagery applications BT.1663 Expert viewing methods to assess the quality of systems for the digital display of large screen digital imagery in theatres BT.1664 Representation of various image aspect ratios into the image of large screen digital imagery applications that use a 16:9 raste
19、r BT.1665 Considerations for colour encoding and spatial resolution for large screen digital imagery display BT.1666 User requirements for large screen digital imagery applications intended for presentation in a theatrical environment BS.1679 Subjective assessment of the quality of audio in large sc
20、reen digital imagery applications intended for presentation in a theatrical environment BT.1680 Baseband imaging format for distribution of large screen digital imagery applications intended for presentation in a theatrical environment BT.1686 Methods of measurement of image presentation parameters
21、for large screen digital imagery programme presentation in a theatrical environment BT.1687 Video bit-rate reduction for real-time distribution of large screen digital imagery applications for presentation in a theatrical environment BS.1688 Baseband sound system and audio source-coding at delivery
22、interfaces of large screen digital imagery applications BT.1689 Guidelines on the presentation in large screen digital imagery environments of programmes that are provided in image formats conforming to Recommendation ITU-R BT.601 BT.1690 Assumed characteristics of venues intended for large screen d
23、igital imagery programme presentation in a theatrical environment BR.1694 International exchange of videocassette recordings of large screen digital imagery programmes intended for presentation in a theatrical environment BT.1721 Objective measurement of perceptual image quality of large screen digi
24、tal imagery applications for theatrical presentation BT.1727 Terrestrial and satellite delivery of programme material to large screen digital imagery venues BS.1734 Basic performance requirements for the sound components of large screen digital imagery applications for presentation in a theatrical environment BT.1769 Parameter values for an expanded hierarchy of large screen digital imagery image formats for production and international programme exchange.
